Won't pay for their own network doctors

I am extremely upset with the service I'm getting from key care. This is now the second time I used a network doctor and pharmacy that is stated on my app! And I receive messages that it's not a network doctor or pharmacy. When I took out my medical aid the lady said I can go to any doctor as long as it's a network doctor. Now after 3 visits to a doctor that's close to my work I only find out the medical aid will not pay. I will not accept this from key care. Rubbing honey around your lips making it sound amazing just to find out the do not pay at all. I had to pay meds cash because the do not cover it even though the doctor worked of a list of key care medicines. So what you are telling me is when something does happend to me, I will be liable for the costs on everything because the app that shows me my doctors and hospitals is wrong in any way. I will never again support discovery. This is one of the worst services I have ever received and the fact still remains that you guys *****ed me financially now. I can't afford to pay doctors out of my pocket when I need it. Now I have to because you don't cover. Thank you for absolutely nothing. Don't even try and call me to explain. I am fed up with the lies I have been sold